Water Quality in KEOTA, OK (74941)

EPA violation data for public water systems serving ZIP code 74941.

164

Total Violations

119

Health-Based

Monitoring / Reporting

160

Resolved

What does this mean?

160 of 164 violations have been resolved. 119 are health-based violations, meaning contaminant levels exceeded federal safety limits. The remaining 45 are monitoring or reporting violations (missed testing deadlines or late paperwork — not necessarily a water quality issue). Not all violations mean your water is unsafe. The EPA requires reporting even for minor administrative issues.

Water systems: 4 Population served: 706

Violations Detail (164 total)

Contaminant	Category	MCL Limit	Measured	Date	Status	Health Effects
TTHM	Monitoring	N/A	N/A	Sep 28, 2025	Active	N/A
Total Haloacetic Acids (HAA5)	Monitoring	N/A	N/A	Sep 28, 2025	Active	N/A
TTHM	Health-Based	N/A	0.099	Jun 30, 2025	Resolved	N/A
TTHM	Health-Based	N/A	0.105	Jun 30, 2025	Resolved	N/A
Total Haloacetic Acids (HAA5)	Health-Based	N/A	0.074	Jun 30, 2025	Resolved	N/A
TTHM	Health-Based	N/A	0.104	Mar 31, 2025	Resolved	N/A
TTHM	Health-Based	N/A	0.104	Mar 31, 2025	Resolved	N/A
TTHM	Health-Based	N/A	0.104	Mar 31, 2025	Resolved	N/A
TTHM	Health-Based	N/A	0.099	Mar 31, 2025	Resolved	N/A
TTHM	Health-Based	N/A	0.099	Mar 31, 2025	Resolved	N/A
TTHM	Health-Based	N/A	0.099	Mar 31, 2025	Resolved	N/A
Total Haloacetic Acids (HAA5)	Health-Based	N/A	0.069	Mar 31, 2025	Resolved	N/A
Total Haloacetic Acids (HAA5)	Health-Based	N/A	0.069	Mar 31, 2025	Resolved	N/A
Total Haloacetic Acids (HAA5)	Health-Based	N/A	0.069	Mar 31, 2025	Resolved	N/A
Chlorine	Monitoring	N/A	N/A	Jan 31, 2025	Resolved	Eye and nose irritation; stomach discomfort
Chlorine	Monitoring	N/A	N/A	Jan 31, 2025	Resolved	Eye and nose irritation; stomach discomfort
Chlorine	Monitoring	N/A	N/A	Jan 31, 2025	Resolved	Eye and nose irritation; stomach discomfort
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jan 31, 2025	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jan 31, 2025	Resolved	N/A
Revised Total Coliform Rule	Monitoring	N/A	N/A	Jan 31, 2025	Resolved	N/A
TTHM	Health-Based	N/A	0.099	Dec 31, 2024	Resolved	N/A
TTHM	Health-Based	N/A	0.094	Dec 31, 2024	Resolved	N/A
TTHM	Health-Based	N/A	0.099	Dec 31, 2024	Resolved	N/A
TTHM	Health-Based	N/A	0.094	Dec 31, 2024	Resolved	N/A
TTHM	Health-Based	N/A	0.094	Dec 31, 2024	Resolved	N/A
TTHM	Health-Based	N/A	0.099	Dec 31, 2024	Resolved	N/A
LEAD AND COPPER RULE REVISIONS	Health-Based	N/A	N/A	Oct 16, 2024	Active	N/A
LEAD AND COPPER RULE REVISIONS	Monitoring	N/A	N/A	Oct 16, 2024	Active	N/A
TTHM	Health-Based	N/A	0.098	Sep 30, 2024	Resolved	N/A
TTHM	Health-Based	N/A	0.09	Sep 30, 2024	Resolved	N/A
TTHM	Health-Based	N/A	0.09	Sep 30, 2024	Resolved	N/A
TTHM	Health-Based	N/A	0.098	Sep 30, 2024	Resolved	N/A
TTHM	Health-Based	N/A	0.09	Sep 30, 2024	Resolved	N/A
TTHM	Health-Based	N/A	0.098	Sep 30, 2024	Resolved	N/A
Total Haloacetic Acids (HAA5)	Monitoring	N/A	N/A	Sep 28, 2024	Resolved	N/A
Total Haloacetic Acids (HAA5)	Monitoring	N/A	N/A	Sep 28, 2024	Resolved	N/A
TTHM	Monitoring	N/A	N/A	Sep 28, 2024	Resolved	N/A
TTHM	Monitoring	N/A	N/A	Sep 28, 2024	Resolved	N/A
TTHM	Health-Based	N/A	0.097	Jun 30, 2024	Resolved	N/A
TTHM	Health-Based	N/A	0.097	Jun 30, 2024	Resolved	N/A
TTHM	Health-Based	N/A	0.097	Jun 30, 2024	Resolved	N/A
TTHM	Health-Based	N/A	0.09	Jun 30, 2024	Resolved	N/A
TTHM	Health-Based	N/A	0.09	Jun 30, 2024	Resolved	N/A
TTHM	Health-Based	N/A	0.09	Jun 30, 2024	Resolved	N/A
Total Haloacetic Acids (HAA5)	Health-Based	N/A	0.063	Mar 31, 2024	Resolved	N/A
Total Haloacetic Acids (HAA5)	Health-Based	N/A	0.063	Mar 31, 2024	Resolved	N/A
Total Haloacetic Acids (HAA5)	Health-Based	N/A	0.063	Mar 31, 2024	Resolved	N/A
Total Haloacetic Acids (HAA5)	Health-Based	N/A	0.063	Mar 31, 2024	Resolved	N/A
TTHM	Health-Based	N/A	0.092	Dec 31, 2023	Resolved	N/A
TTHM	Health-Based	N/A	0.092	Dec 31, 2023	Resolved	N/A
TTHM	Health-Based	N/A	0.092	Dec 31, 2023	Resolved	N/A
TTHM	Health-Based	N/A	0.092	Dec 31, 2023	Resolved	N/A
Total Haloacetic Acids (HAA5)	Health-Based	N/A	0.069	Dec 31, 2023	Resolved	N/A
Total Haloacetic Acids (HAA5)	Health-Based	N/A	0.069	Dec 31, 2023	Resolved	N/A
Total Haloacetic Acids (HAA5)	Health-Based	N/A	0.069	Dec 31, 2023	Resolved	N/A
Total Haloacetic Acids (HAA5)	Health-Based	N/A	0.069	Dec 31, 2023	Resolved	N/A
Consumer Confidence Rule	Monitoring	N/A	N/A	Oct 1, 2023	Resolved	N/A
Consumer Confidence Rule	Monitoring	N/A	N/A	Oct 1, 2023	Resolved	N/A
Total Haloacetic Acids (HAA5)	Health-Based	N/A	0.065	Sep 30, 2023	Resolved	N/A
Total Haloacetic Acids (HAA5)	Health-Based	N/A	0.065	Sep 30, 2023	Resolved	N/A
Total Haloacetic Acids (HAA5)	Health-Based	N/A	0.065	Sep 30, 2023	Resolved	N/A
Total Haloacetic Acids (HAA5)	Health-Based	N/A	0.065	Sep 30, 2023	Resolved	N/A
TTHM	Health-Based	N/A	0.096	Sep 30, 2023	Resolved	N/A
TTHM	Health-Based	N/A	0.096	Sep 30, 2023	Resolved	N/A
TTHM	Health-Based	N/A	0.096	Sep 30, 2023	Resolved	N/A
TTHM	Health-Based	N/A	0.096	Sep 30, 2023	Resolved	N/A
TTHM	Health-Based	N/A	0.085	Sep 30, 2023	Resolved	N/A
TTHM	Health-Based	N/A	0.085	Sep 30, 2023	Resolved	N/A
TTHM	Health-Based	N/A	0.085	Sep 30, 2023	Resolved	N/A
TTHM	Health-Based	N/A	0.085	Sep 30, 2023	Resolved	N/A
Total Haloacetic Acids (HAA5)	Monitoring	N/A	N/A	Aug 31, 2023	Resolved	N/A
Total Haloacetic Acids (HAA5)	Monitoring	N/A	N/A	Aug 31, 2023	Resolved	N/A
Total Haloacetic Acids (HAA5)	Monitoring	N/A	N/A	Aug 31, 2023	Resolved	N/A
TTHM	Monitoring	N/A	N/A	Aug 31, 2023	Resolved	N/A
Total Haloacetic Acids (HAA5)	Monitoring	N/A	N/A	Aug 31, 2023	Resolved	N/A
TTHM	Monitoring	N/A	N/A	Aug 31, 2023	Resolved	N/A
TTHM	Monitoring	N/A	N/A	Aug 31, 2023	Resolved	N/A
TTHM	Monitoring	N/A	N/A	Aug 31, 2023	Resolved	N/A
TTHM	Health-Based	N/A	0.098	Jun 30, 2023	Resolved	N/A
TTHM	Health-Based	N/A	0.098	Jun 30, 2023	Resolved	N/A
TTHM	Health-Based	N/A	0.098	Jun 30, 2023	Resolved	N/A
TTHM	Health-Based	N/A	0.098	Jun 30, 2023	Resolved	N/A
Lead and Copper Rule	Monitoring	N/A	N/A	Jun 30, 2023	Resolved	N/A
Lead and Copper Rule	Monitoring	N/A	N/A	Jun 30, 2023	Resolved	N/A
Lead and Copper Rule	Monitoring	N/A	N/A	Jun 30, 2023	Resolved	N/A
Lead and Copper Rule	Monitoring	N/A	N/A	Jun 30, 2023	Resolved	N/A
TTHM	Health-Based	N/A	0.107	Jun 30, 2023	Resolved	N/A
TTHM	Health-Based	N/A	0.107	Jun 30, 2023	Resolved	N/A
TTHM	Health-Based	N/A	0.107	Jun 30, 2023	Resolved	N/A
TTHM	Health-Based	N/A	0.107	Jun 30, 2023	Resolved	N/A
TTHM	Health-Based	N/A	0.132	Mar 31, 2023	Resolved	N/A
TTHM	Health-Based	N/A	0.132	Mar 31, 2023	Resolved	N/A
TTHM	Health-Based	N/A	0.132	Mar 31, 2023	Resolved	N/A
TTHM	Health-Based	N/A	0.132	Mar 31, 2023	Resolved	N/A
TTHM	Health-Based	N/A	0.109	Mar 31, 2023	Resolved	N/A
TTHM	Health-Based	N/A	0.109	Mar 31, 2023	Resolved	N/A
TTHM	Health-Based	N/A	0.109	Mar 31, 2023	Resolved	N/A
TTHM	Health-Based	N/A	0.109	Mar 31, 2023	Resolved	N/A
TTHM	Health-Based	N/A	0.124	Dec 31, 2022	Resolved	N/A
TTHM	Health-Based	N/A	0.124	Dec 31, 2022	Resolved	N/A
TTHM	Health-Based	N/A	0.124	Dec 31, 2022	Resolved	N/A
TTHM	Health-Based	N/A	0.124	Dec 31, 2022	Resolved	N/A
Lead and Copper Rule	Monitoring	N/A	N/A	Dec 31, 2022	Resolved	N/A
Lead and Copper Rule	Monitoring	N/A	N/A	Dec 31, 2022	Resolved	N/A
Lead and Copper Rule	Monitoring	N/A	N/A	Dec 31, 2022	Resolved	N/A
Lead and Copper Rule	Monitoring	N/A	N/A	Dec 31, 2022	Resolved	N/A
TTHM	Health-Based	N/A	0.1	Dec 31, 2022	Resolved	N/A
TTHM	Health-Based	N/A	0.1	Dec 31, 2022	Resolved	N/A
TTHM	Health-Based	N/A	0.1	Dec 31, 2022	Resolved	N/A
TTHM	Health-Based	N/A	0.1	Dec 31, 2022	Resolved	N/A
TTHM	Health-Based	N/A	0.106	Sep 30, 2022	Resolved	N/A
TTHM	Health-Based	N/A	0.106	Sep 30, 2022	Resolved	N/A
TTHM	Health-Based	N/A	0.106	Sep 30, 2022	Resolved	N/A
TTHM	Health-Based	N/A	0.106	Sep 30, 2022	Resolved	N/A
TTHM	Health-Based	N/A	0.129	Sep 30, 2022	Resolved	N/A
TTHM	Health-Based	N/A	0.129	Sep 30, 2022	Resolved	N/A
TTHM	Health-Based	N/A	0.129	Sep 30, 2022	Resolved	N/A
TTHM	Health-Based	N/A	0.129	Sep 30, 2022	Resolved	N/A
TTHM	Health-Based	N/A	0.126	Jun 30, 2022	Resolved	N/A
TTHM	Health-Based	N/A	0.126	Jun 30, 2022	Resolved	N/A
TTHM	Health-Based	N/A	0.126	Jun 30, 2022	Resolved	N/A
TTHM	Health-Based	N/A	0.126	Jun 30, 2022	Resolved	N/A
TTHM	Health-Based	N/A	0.099	Jun 30, 2022	Resolved	N/A
TTHM	Health-Based	N/A	0.099	Jun 30, 2022	Resolved	N/A
TTHM	Health-Based	N/A	0.099	Jun 30, 2022	Resolved	N/A
TTHM	Health-Based	N/A	0.099	Jun 30, 2022	Resolved	N/A
Chlorine	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	Eye and nose irritation; stomach discomfort
Chlorine	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	Eye and nose irritation; stomach discomfort
Chlorine	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	Eye and nose irritation; stomach discomfort
Chlorine	Monitoring	N/A	N/A	Jun 30, 2022	Resolved	Eye and nose irritation; stomach discomfort
TTHM	Monitoring	N/A	N/A	Jun 29, 2022	Resolved	N/A
TTHM	Monitoring	N/A	N/A	Jun 29, 2022	Resolved	N/A
TTHM	Monitoring	N/A	N/A	May 31, 2022	Resolved	N/A
TTHM	Monitoring	N/A	N/A	May 31, 2022	Resolved	N/A
TTHM	Monitoring	N/A	N/A	May 31, 2022	Resolved	N/A
TTHM	Monitoring	N/A	N/A	May 31, 2022	Resolved	N/A
Total Haloacetic Acids (HAA5)	Monitoring	N/A	N/A	May 31, 2022	Resolved	N/A
Total Haloacetic Acids (HAA5)	Monitoring	N/A	N/A	May 31, 2022	Resolved	N/A
Total Haloacetic Acids (HAA5)	Monitoring	N/A	N/A	May 31, 2022	Resolved	N/A
Total Haloacetic Acids (HAA5)	Monitoring	N/A	N/A	May 31, 2022	Resolved	N/A
TTHM	Health-Based	N/A	0.113	Mar 31, 2022	Resolved	N/A
TTHM	Health-Based	N/A	0.113	Mar 31, 2022	Resolved	N/A
TTHM	Health-Based	N/A	0.113	Mar 31, 2022	Resolved	N/A
TTHM	Health-Based	N/A	0.113	Mar 31, 2022	Resolved	N/A
TTHM	Health-Based	N/A	0.118	Mar 31, 2022	Resolved	N/A
TTHM	Health-Based	N/A	0.118	Mar 31, 2022	Resolved	N/A
TTHM	Health-Based	N/A	0.118	Mar 31, 2022	Resolved	N/A
TTHM	Health-Based	N/A	0.118	Mar 31, 2022	Resolved	N/A
TTHM	Health-Based	N/A	0.099	Dec 31, 2021	Resolved	N/A
TTHM	Health-Based	N/A	0.099	Dec 31, 2021	Resolved	N/A
TTHM	Health-Based	N/A	0.099	Dec 31, 2021	Resolved	N/A
TTHM	Health-Based	N/A	0.099	Dec 31, 2021	Resolved	N/A
TTHM	Health-Based	N/A	0.104	Dec 31, 2021	Resolved	N/A
TTHM	Health-Based	N/A	0.104	Dec 31, 2021	Resolved	N/A
TTHM	Health-Based	N/A	0.104	Dec 31, 2021	Resolved	N/A
TTHM	Health-Based	N/A	0.104	Dec 31, 2021	Resolved	N/A
TTHM	Health-Based	N/A	0.089	Sep 30, 2021	Resolved	N/A
TTHM	Health-Based	N/A	0.089	Sep 30, 2021	Resolved	N/A
TTHM	Health-Based	N/A	0.089	Sep 30, 2021	Resolved	N/A
TTHM	Health-Based	N/A	0.089	Sep 30, 2021	Resolved	N/A
TTHM	Health-Based	N/A	0.091	Sep 30, 2021	Resolved	N/A
TTHM	Health-Based	N/A	0.091	Sep 30, 2021	Resolved	N/A
TTHM	Health-Based	N/A	0.091	Sep 30, 2021	Resolved	N/A
TTHM	Health-Based	N/A	0.091	Sep 30, 2021	Resolved	N/A

Lead & Copper Levels

Violation Timeline

2025(20)

TTHM

Sep 28Active

Total Haloacetic Acids (HAA5)

Sep 28Active

TTHM

Jun 30Resolved

TTHM

Jun 30Resolved

Total Haloacetic Acids (HAA5)

Jun 30Resolved

TTHM

Mar 31Resolved

TTHM

Mar 31Resolved

TTHM

Mar 31Resolved

TTHM

Mar 31Resolved

TTHM

Mar 31Resolved

TTHM

Mar 31Resolved

Total Haloacetic Acids (HAA5)

Mar 31Resolved

Total Haloacetic Acids (HAA5)

Mar 31Resolved

Total Haloacetic Acids (HAA5)

Mar 31Resolved

Chlorine

Jan 31Resolved

Chlorine

Jan 31Resolved

Chlorine

Jan 31Resolved

Revised Total Coliform Rule

Jan 31Resolved

Revised Total Coliform Rule

Jan 31Resolved

Revised Total Coliform Rule

Jan 31Resolved

2024(28)

TTHM

Dec 31Resolved

TTHM

Dec 31Resolved

TTHM

Dec 31Resolved

TTHM

Dec 31Resolved

TTHM

Dec 31Resolved

TTHM

Dec 31Resolved

LEAD AND COPPER RULE REVISIONS

Oct 16Active

LEAD AND COPPER RULE REVISIONS

Oct 16Active

TTHM

Sep 30Resolved

TTHM

Sep 30Resolved

TTHM

Sep 30Resolved

TTHM

Sep 30Resolved

TTHM

Sep 30Resolved

TTHM

Sep 30Resolved

Total Haloacetic Acids (HAA5)

Sep 28Resolved

Total Haloacetic Acids (HAA5)

Sep 28Resolved

TTHM

Sep 28Resolved

TTHM

Sep 28Resolved

TTHM

Jun 30Resolved

TTHM

Jun 30Resolved

TTHM

Jun 30Resolved

TTHM

Jun 30Resolved

TTHM

Jun 30Resolved

TTHM

Jun 30Resolved

Total Haloacetic Acids (HAA5)

Mar 31Resolved

Total Haloacetic Acids (HAA5)

Mar 31Resolved

Total Haloacetic Acids (HAA5)

Mar 31Resolved

Total Haloacetic Acids (HAA5)

Mar 31Resolved

How Does This Compare?

KEOTA (74941) has 164 recorded violations, including 119 health-based. 4 remain unresolved. Consider testing your tap water independently for added peace of mind.

Recommended Water Filters

Based on the contaminants detected in your area, these filter types may help improve your water quality.

Reverse Osmosis System

Highly effective at removing heavy metals, dissolved solids, and a wide range of contaminants. Recommended for homes with lead or arsenic concerns.

Targets:Lead, Copper, Arsenic, Mercury, Cadmium

Look for:NSF/ANSI 58 certified

NSF Certified Products → EPA Safe Drinking Water Guide →

Activated Carbon Filter

Excellent for removing chlorine, chloramine, and disinfection byproducts like THMs and HAAs. Available as pitcher filters, countertop, or under-sink units.

Targets:THMs, HAAs, Chlorine, Chloramine, Taste & Odor

Look for:NSF/ANSI 42 & 53 certified

NSF Certified Products → EPA Safe Drinking Water Guide →

UV Water Purifier

Uses ultraviolet light to neutralize bacteria, viruses, and parasites without chemicals. Ideal for homes with microbial contamination concerns.

Targets:E. coli, Coliform, Giardia, Cryptosporidium

Look for:NSF/ANSI 55 (Class A) certified

NSF Certified Products → EPA Safe Drinking Water Guide →

Always look for filters certified by NSF International for the specific contaminants you want to remove.

Water Quality in KEOTA, OK (74941)

What does this mean?

Violations Detail (164 total)

Lead & Copper Levels

Violation Timeline

2025(20)

2024(28)

2023(50)

2022(50)

2021(16)

How Does This Compare?

Recommended Water Filters

Reverse Osmosis System

Activated Carbon Filter

UV Water Purifier

Nearby ZIP Codes

Check Another ZIP Code